Canadian Dental Care Plan (CDCP) for Seniors
As a Canadian senior, you may be eligible to apply for the new Canadian Dental Care Plan, government funding for your dental care.
https://www.canada.ca/en/revenue-agency/services/child-family-benefits/dental-benefit.html

Canadian Dental Care Plan (CDCP) for children under the age of 12 years
If you are a parent or guardian of a child under age 12, and you do not have access to dental insurance, you may be eligible for Canadian Dental Care Plan.
https://www.canada.ca/en/services/benefits/dental/dental-care-plan.html

Canada Revenue Agency (CRA) eligible medical expenses
Through a Healthcare Spending Account you may cover eligible medical expenses and the portion of expenses not covered by a health or dental benefits plan. For a list of eligible CRA expenses, please visit website.
https://www.canada.ca/en/revenue-agency/services/tax/individuals/topics/about-your-tax-return/tax-return/completing-a-tax-return/deductions-credits-expenses/lines-330-331-eligible-medical-expenses-you-claim-on-your-tax-return.html

Health Canada
Health Canada is the Federal department responsible for helping Canadians maintain and improve their health
http://www.hc-sc.gc.ca/ahc-asc/index-eng.php

OHIP - Ontario Health Insurance Plan
https://www.ontario.ca/page/health-cards

CPP - Canada Pension Plan
Your contributions to the Canada Pension Plan provide you with a stable and dependable pension you can build on for retirement.
https://www.canada.ca/en/services/benefits/publicpensions/cpp.html

Employment Insurance - EI
Employment Insurance provides temporary financial assistance for unemployed Canadians while they look for work or upgrade their skills. Canadians who are sick, pregnant or caring for a newborn or adopted child, as well as those who must care for a family member who is seriously ill with a significant risk of death, may also be assisted by Employment Insurance.
https://www.canada.ca/en/services/benefits/ei.html

Ontario Drug Benefit Program (65 yrs old)
people 65 years of age and older;residents of long-term care homes; residents of Homes for Special Care; people receiving professional services under the Home Care program Trillium Drug Program registrants. 
http://www.health.gov.on.ca/en/public/programs/drugs/programs/odb/odb.aspx

Trillium Drug Program 
The Trillium Drug Program (TDP) is intended for Ontario residents who have a valid Ontario Health Card and who have high prescription drug costs in relation to their net household income.
http://www.health.gov.on.ca/en/public/programs/drugs/programs/odb/opdp_trillium.aspx

New Drug Funding Program
This program provides funding for new and expensive intravenously administered drugs. (i.e cancer drugs)
https://www.cancercareontario.ca/en

Assistive Devices Program
Provides consumer centered support and funding to Ontario residents who have long-term physical disabilities and to provide access to personalized assistive devices appropriate for the individual’s basic needs. 
http://www.health.gov.on.ca/english/public/program/adp/adp_mn.html